2008年12月21日星期日

How to Select a GPS

As some domestic manufacturers to produce products of the GPS is not mature enough, there are always a weak signal, not positioning, not alarm, alarm or disorder with features of its on-board phone owners to easily dropped, and so much trouble. GPS technology experts remind consumers to buy GPS products should pay attention to the following areas.

The stability of the product.

First of all, to consider the option of anti-electromagnetic interference strong, stable performance GPS products. Vehicle hit bumps along the way, the high temperature, EMI, the car is rather poor environmental conditions will affect the operation of GPS, so the stability of the product would like to stress.

Select operator.

To consider the choice of powerful networks, the sustainable development of the operator to prevent the network coverage area is too small or as a result of the closure of the company and can not be reliable follow-up services.

Aesthetics of the product.

GPS products are installed hidden, but the high-end products, usually with on-board telephone (handle), to buy time to consider whether the handle of fashion, design aesthetic appearance, with the interior color guard, and whether the co-ordination and so on.

Tell-level module.

GPS module is divided into two levels, civil and industrial grades. Industrial-class performance and stability of the modules, some of the relatively expensive; civilian class module adaptation to the environment was not so satisfactory, but some of the relatively inexpensive price. Consumers should be considered cost-effective.

Security of energy delivery.

GPS's greater energy expenditure, should set up a dedicated GPS power to prevent ordinary power in the lower-frequency electrical environment of instability, so that the burn circuit fault occurs. Electricity cable car traffic, a common line to connect easily burned, the quality of the cable in order to better ensure the safety and reliable.

Capabilities.

At present, products are not cheap, GPS is a general price increase as an initial installation fee of 50-100 yuan per month cost. Model car of the main economic capabilities.

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